but i think what's important to remember is that nelson mandela, barack obama, barack obama himself has often said we stand on the shoulders of giants, and today he praised the shoulders of nelson mandela. but nelson mandela stood on the shoulders of giants, albert latuli who was the first african to win a nobel prize for doing the same kind of thing that nelson mandela did. so i think what's important for this moment is to cherish this moment but to ensure that the lessons of these giants on whose shoulders we all stand get told time and time again, because one day isn't going to do it. it's not going to do it here in south africa where there are myriad problems in this young, almost 20-year-old democracy. it's not going to happen in america or anywhere else in the world until we understand that history and understand what all of those giants, culminating with nelson mandela, were trying to teach us. >> thank you so much for being with us today. >>> it's round two for snow for residents from baltimore to boston this morning. schools were closed throughout the mid-atlantic, even before